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10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 9/11/2005 10:09:00 AM EDT
Picked up The Director's Cut of DAS BOOT at Walmart yesterday for $7.50. Haven't seen the movie in years.

Question is; Do modern subs groan and squeak as bad as the old subs of WWll age when they submerge? It's the nature of the beast of course, as it's the water pressure increasing on the boat's hull. But one would think that more modern, technologically advanced subs would stand up to the increased pressures better.

I'm sure they do, but to a lesser degree, maybe?
Link Posted: 9/11/2005 10:37:10 AM EDT
no

experience- 4 years 688i
Link Posted: 9/11/2005 10:44:02 AM EDT

Originally Posted By Botch:
no

experience- 4 years 688i



Cause of the circular pressure hull?
Link Posted: 9/11/2005 10:50:20 AM EDT
From my experience as a former U.S. submarine sailor, no they don't creak or groan. Great measures are gone thru to make the submarines as quite as possible. Everything is mounted on sound isolation mounts (usually rubber) from machinery to the actual decks that we walked on.

Link Posted: 9/11/2005 10:52:08 AM EDT
But they still will get compressed as they dive deep. The round hulls and double hulls make them much stronger and durable.
Link Posted: 9/11/2005 10:54:12 AM EDT

FUCK YOU, GOD! NOTHING gets through HY-80!


-Blind Man's Bluff
Link Posted: 9/11/2005 10:58:01 AM EDT

Originally Posted By Ben70:

FUCK YOU, GOD! NOTHING gets through HY-80!


-Blind Man's Bluff



Excellent book...a must read if you already haven't
Link Posted: 9/11/2005 1:55:26 PM EDT

Originally Posted By Ben70:

NOTHING gets through HY-80!


-Blind Man's Bluff





or HY-100 on ice boats
Link Posted: 9/11/2005 2:00:33 PM EDT
As one submarine Captain said, "The only way to look for a US Navy sub is to look for a completely quiet hole in the water."
Link Posted: 9/11/2005 2:09:59 PM EDT
[Last Edit: 9/11/2005 2:12:01 PM EDT by FishKepr]
Don't mean to hijack, but this seemed an appropriate place:

When the forward room of the submarine was flooding in the film Ice Station Zebra, the crew opened these air vents in the first two compartments and said they were "bleeding air." What was that about?
Link Posted: 9/11/2005 2:17:29 PM EDT
An old friend of mine was in the Subs at Subic Bay P.I. told me that Submarines was the true
Navy, all the rest were just targets
Link Posted: 9/12/2005 7:28:47 AM EDT

Originally Posted By FishKepr:
Don't mean to hijack, but this seemed an appropriate place:

When the forward room of the submarine was flooding in the film Ice Station Zebra, the crew opened these air vents in the first two compartments and said they were "bleeding air." What was that about?



Did not see the movie, but it sounds like they were bleeding air into the forward ballast tanks. They are open to the water at the bottom, and bleeding air into them will force water out equalizing our flooding.

US Subs seem to have a pretty large safety margin for flooding. It was surprising to see, in drawings, how much water could be in the people tank and still be able to stay afloat. I would love to say more, but I don't want NIS to come knocking.
Link Posted: 9/12/2005 7:35:26 AM EDT
[Last Edit: 9/12/2005 7:35:39 AM EDT by mongo001]
They pop and crack some when changing depth.

3yrs on 637 class.
Link Posted: 9/12/2005 8:28:26 PM EDT

Originally Posted By pogo:

Originally Posted By FishKepr:
Don't mean to hijack, but this seemed an appropriate place:

When the forward room of the submarine was flooding in the film Ice Station Zebra, the crew opened these air vents in the first two compartments and said they were "bleeding air." What was that about?



Did not see the movie, but it sounds like they were bleeding air into the forward ballast tanks. They are open to the water at the bottom, and bleeding air into them will force water out equalizing our flooding.

US Subs seem to have a pretty large safety margin for flooding. It was surprising to see, in drawings, how much water could be in the people tank and still be able to stay afloat. I would love to say more, but I don't want NIS to come knocking.



Actually in the film it appeared that they were forcing air into the two forward crew spaces after one of the torpedo tubes was opened to sea. (The tube door controls were sabotaged.) At first I thought they were trying to minimalize the flooding by equalizing the pressure, but after the door was closed, they continued to "bleed air."

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